Electric switch.



Lil)

minnaar W. ooomtroon, oie Buincznronfr. oonunoronir, Assmann fro THE ERYANT .estamento COMPANY. or Buinoneonrr. oonimo'iorf'r.' a ooarona'ron or con- ELECTRIC SWITCH.

Specification of Letters Fatemi.

llatcnted Feld. 55, ltli.

Application filed November 6. 1916. I Serial No. 129,794.

.To nl/7 Paone-iz? muy concern:

vtill a Icitizen ot 'the UnitedStates ot' Illini, Iica. und residing at Bridgeport. in the count)- of l."airield. and Stateot" Connecti- Fig, is a longitudinal.section theretlurouc'n j;

is a perspective ot the switch s a plan view thereof: 's a section `through. the switch. liar:

rg. 6 is a perspective view oit thc latter.

f lo switch mechanism here shown is of tite. wneral ttvpe illustrated in the cti-pending? application ol Carl ric Anderson.

'Arial lilo. l'lllllti. but it isfto be understood that the iinprofenients to which inv invention relates muy be applied to various other actions and isnot limited to the parnieclianisni illustrated. As here 1L however. the switch comprises the usual insulating body lll of cup sli'ape pio riding an interior switch chamber Within which are mounted the switch terminals il carried by the Wire terminals lto which the Wifi-e connections are led through openings-'113 formed in the upper .corners et' the body l0. A' cover Aplate l-l o ve-rlies the switch chamber and is carried ln' a volte "to which in turn is held in position on the body il@ by the sci-ew bolts 16.

The switch mechanism is mounted Within they chamber on a 'trarne comprising a base 1'? with otlset ends 1S tapped at lilto receive 'the securing screws Q0. Standards '2 rise from opposite sides of the base and support the rocker 2:2 and switch liar *arrlving the blades 'El all mounted and arranged in the manner describedy in the application above referred to in operative connection hetween the rocker''and the switch liar 22) is established through the switch spring- 25, one end of which aiiuts against the cross piu :2G which cxtendslietn'een the plates comprising the rocker while the other end hears against the bridge :2T of the switch liar, The parts are so positioned 'iv/ith relation to eachother that. upon the oscillation ot the rocker Qi! liv means of the push buttons, 2S

and 29, the end of theA spr-ing 25 laaring' l against the rocker is shifted from outv side to the other of the axis ot oscillation yot' the switch har and thus etlects the throw ot' the switch liar from oily to off position. or vice versa. with a snap action .lts explained in the applica-lion above' mentioned the lugs ot the rocker Q' are lialtit'l it i'llt tXtle ics olf titi-il Stiulie liv' their iinpingement against the hase 1i" ot' the traine. ln like manner the throw ol" the switch liar :22; nient against tlie stops Si? and forint-d ut the tree ends oit' the standards '21. lliulcr the action ot the sn'u'cli spring' Q5 the throw f the rocker '22 and the switch liar 23 sharp and 'the resultinga impact ot these parts against their stops causes a more or 'less nois'v operation ot the switch.1 have found that this may be to a large' extent eliminated liv cushioningl the impact of botti rocker and sirit'eli han and particularljiv that of the switch liar. lll-Tliile this may loe :1c-- coinplislied in various ways. a simple arningenwnt for this {nirpose illustrated. Thus 'for the sivitch liar Yl nave utilized a' light plate ot' spring' sheet metal El, riveted at to thex inner 'face ot theli'ridge 9i' of the switch liar and provided with Wings 35 and 3i' extending: on opposite sides ot' the lbridge piece andvspaced therefrom. as leest` illustrated in Fig. A central aperture 3S is also provided ,in register with the apen ture 39 in the bridge `piece to accommodate the head ot the'fruide pin 40 for the switch spring. Upon the tln'oiv ot the switch oar from stop lugs 33 to stop lugs the shock ot' impact which. is normali;T talicndirectlv oy the bridge of switch liar '2i' is now teilten b v the spring: Wing Bznhilc on the throw ot the switch bar in the opposite direction its impact against the stops 33 is taken b v the spring Wing 37.

In like manner l rivet at 41 to the basel? is limited by its imningelou vzo

of the frame. and of angicd slightiy upward out ot con* th the hase. Upon the throv: of' the rocker Q2 in one directifon or the other its lugs 3l impinge not against the rigid hase li' as heretofore, but against the raised ends 'sior fili of the spring piste 4.2 which thus cushion the impact of the rocker against the base.

rl"he provision of these cushioning springs involves no material increase in the cost.l ot' manufacture of 'the Switch, since the spring metal of which theY are made is quite inexpensive andtheparts are readily shaped b v stamping, While their attachment to the frame and switch bar respectively is quicklyv accomplished by means of a simple riveting operation.

The operation of the switch is in. no Way affected save that it "is silenced and the' mechanism as a Whole relieved from the detrimental effects incident to the hard shook of impact which heretofore has heen incidental to the snap action of the mechanism ofsxvitches of this general type. As above stated the invention is not limited to the particular mechanism shown nor is it limited to the precise form of cushioning springs employed, 'which may variously modified both in construction 'and arrangementwithout departing from what claim as my invention.

claiin as my invention fi. A si ich mechanism f :oinprisingg an osf :iilating` switch liar having a bridge piece, abutments against which the oiipositc sides oi said bridge piece impinge to limit the throw ot the switch har, in combination with a plate secured to the iaeo oi" said bridge piece and having spring wings ovenl lying' the opposite sides of said liiridge piece and spaced theretroni to cushion the. impact of the switch har against said ahutmeuts.

A switch mechanism comprisingn an oscillating switch bar having a bridge piece, ahutnients against which the opposite sides ot said bridge piece impinge to limit the throw of the switch har, in combination with a plate secured to the face. of said bridge piece and having spring;r Wings over lying' the opposite sides of said bridge piece and spaced therefrom to Cushion the impact/ot1 the switch har against, said abutments, together with a switch spring and a guide therefor piercing said springi vplate and bridge piece.

In testimony whereofhave .signed my name to this specification, in the presence it tivo subscribing witnesses.

GILBERT W. (OODltlDtl,t

Witnesses H. M. VVICHEM, L. FLYNN 

